Development of Glass Nanofiber and Lanthanide Phosphor–Embedded Natural Polymer Nanocomposite Coating for Ultraviolet Filtering Smart Windows and Optical Data Encryption

Luminescence, Год журнала: 2025, Номер 40(5)

Опубликована: Апрель 27, 2025

ABSTRACT Glass nanofibers were prepared by using the electrospinning technology, demonstrating diameters of 50–150 nm. A smart polymer adhesive that has ability to glow in dark and resist water was developed from a hybrid electrospun glass (EGN; reinforcement fibers), rare‐earth aluminate (REA; photochromic agent), gum Arabic (GA; hosting matrix). After an excitation source is turned off, produced luminescent glue can continue produce light for up 100 min. The EGN@GA used immobilize nanoparticles REA ranging size 6 12 adhesives exhibited band at 365 nm emission intensity 518 Both fluorescence afterglow emissions tracked depending on concentration. presence photochromism confirmed when colorless film switched green upon exposure UV yellowish‐green place. scratch resistance hydrophobicity nanocomposites observed improve with increasing content. photostability durability REA/EGN@GA nanocomposite explored. current photoluminescent have several potential applications, including packaging, safety signs, security encoding.

Язык: Английский

Preparation of Lanthanide Aluminate and Glass Nanofiber‐Supported Polyacrylonitrile Plastic Smart Window

Luminescence, Год журнала: 2025, Номер 40(6)

Опубликована: Май 28, 2025

ABSTRACT Lanthanides are a common component in glass windows for smart products. However, glasses fragile and inflexible, corrosive to alkali, costly, whereas plastics cheap, durable, safe. Herein, afterglow photochromic plastic were developed by reinforcing polyacrylonitrile (PAN) with electrospun nanofibers (GNF; 65–125 nm). Transparent films photoluminescence properties introduced physically immobilizing rare‐earth doped aluminate nanoparticles (REAN; 7–13 nm) into composite of GNF@PAN. When irradiated ultraviolet light, the GNF@PAN samples showed change color from transparent green as proved coloration parameters spectra. An emission band was detected at 518 nm upon excitation 365 nm. The morphology photoluminescent hybrids investigated different analytical techniques. scratch resistance significantly enhanced when REAN content increased. With low concentration levels REAN, quickly reversed photochromism signify fluorescence emission. high concentrations via prolonged dark. superhydrophobic blocking increasing phosphor content. displayed an improved hydrophobicity 139.1° 150.8°

Язык: Английский

Development of smart adhesive using glass nanofiber-reinforced polylactic acid oligomer-grafted gum Arabic and lanthanide aluminate

Journal of Photochemistry and Photobiology A Chemistry, Год журнала: 2024, Номер 462, С. 116217 - 116217

Опубликована: Дек. 12, 2024

Язык: Английский